1,7-DICHLOROOCTAMETHYLTETRASILOXANE

CAS No.：2474-02-4

Important Notice

This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
The purchaser must not use this product, or supply it to another party, for personal consumption, sports or fitness, weight loss, health supplements, food, or animal feed.

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1,7-DICHLOROOCTAMETHYLTETRASILOXANE Basic information

Product Name:	1,7-DICHLOROOCTAMETHYLTETRASILOXANE
Synonyms:	1,7-DICHLOROOCTAMETHYLTETRASILOXANE;1,7-dichloro-1,1,3,3,5,5,7,7-octamethyl-tetrasiloxan;1,7-Dichloro-1,1,3,3,5,5,7,7-octamethyltetrasiloxane;1,7-dichloro-1,1,3,3,5,5,7,7-octamethyl-Tetrasiloxane;Tetrasiloxane, 1,7-dichloro-1,1,3,3,5,5,7,7-octamethyl-;1,3-dichlorooctamethyltetrasiloxane;1,7-Dichloro-1,1,3,3,5,5,7,7-octamethyl-2,4,6-trioxaheptasilane;1,7-Dichloro-1,1,3,3,5,5,7,7-octamethylheptanetetrasiloxane
CAS:	2474-02-4
MF:	C8H24Cl2O3Si4
MW:	351.52
EINECS:	219-597-6
Product Categories:	Chemical Synthesis;Organometallic Reagents;Organometallic Reagents;Organosilicon;Siloxanes
Mol File:	2474-02-4.mol

1,7-DICHLOROOCTAMETHYLTETRASILOXANE Chemical Properties

Melting point	−62 °C(lit.)
Boiling point	222 °C(lit.)
density	1.011 g/mL at 25 °C(lit.)
refractive index	n20/D 1.405(lit.)
Fp	190 °F
form	liquid
Specific Gravity	1.011
color	Colorless to Almost colorless
Hydrolytic Sensitivity	8: reacts rapidly with moisture, water, protic solvents
BRN	1784800
EPA Substance Registry System	Tetrasiloxane, 1,7-dichloro-1,1,3,3,5,5,7,7-octamethyl- (2474-02-4)

Safety Information

Hazard Codes	C
Risk Statements	34
Safety Statements	26-36/37/39-45
RIDADR	UN 2987 8/PG 2
WGK Germany	3
F	10-21
TSCA	Yes
HazardClass	8
PackingGroup	II
HS Code	29319090

MSDS Information

Provider	Language
SigmaAldrich	English

1,7-DICHLOROOCTAMETHYLTETRASILOXANE Usage And Synthesis

1,7-DICHLOROOCTAMETHYLTETRASILOXANE Preparation Products And Raw materials

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